JEE Main 2023 — Surface Chemistry Question with Solution
JEE Main 2023 (29 Jan Shift 1)
Question
Which of the following salt solutions would coagulate the colloid soloution formed when is added to solution, at the fastest rate?
Choose an option
Show full solutionCorrect option: A
Correct answer
A of
Step-by-step explanation
Generally, the greater the valence of the flocculating ion added, the greater its power to cause precipitation. In the coagulation of a negative sol, the flocculating power is in the order:
with forms a negative sol.
So, coagulate it most.
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This is a previous-year question from JEE Main 2023, covering the Surface Chemistry chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.